Haystacker



C. C. COPE. HAYSTACKER, APPLICATION FILED FEB. 27, 1920.

C. C. COPE.

HAYSTACKER. APPLICATlON FILED FEB. 27, 1920.

1,421,175, Patented June 27,1922.

2 SHEETS-SHEET 2.

TATE

"i til CARSON C. COPE, OF WINDSOR, COLOR-ADOQASSIGNOB, BY MESNE ASSIGNMENTS, TO

THE WINDSOR MANUFACTURING COMPANY, OF WINDSOR, COLORADO, A CORPO- RATION OF COLORADO.

HAYSTACKER.

drawings, and to the characters of reference marked thereon, which form a part of this specification.

The object of this invention is to provide a simple, cheap and efiicient haystacker.

Briefly, the invention comprises a main frame upon which there is mounted a lift mg frame, extension arms-and a stacker head. The frame also carries guides for one end of a link, the other end of which is -'conne'cted with an extension arm. Lifting means is provided so that when the stacker head and lifting arms areelevated, the link will cause an extension of the head through the medium of the extension arms. The forward end of each link may be connected at any one of various points in order to vary the amount of extension, and the sliding movement of the rear ends of the links where they are connected with the guides may be varied in extent.

In the drawings:

Fig. 1 is a side elevation of the stacker embodying my invention.

Fig. 2 is a plan. Fig. 3 is a detail, indicated by line 3 of Fig. 2.

Fig. 4 is a detail indicated by line 44 of Fig. 2.

Fig. 5 is a side elevation showing the head extended almost to the limit.

The main frame is comprised ofside timhere 10, connected at the ends by crossbars 12. vided, and inclined guide members 16 extend from the tops of these posts forwardly to the timbers 10, these guides being slotted as indicated at 18. Short bracing members 20 are connected with the timbers 10 and with the guides 16. At 22 the lifting arms At the rear, upright posts 14 are pro-' Specification of Letters Patent. Patgntgd n 7 1922.

Application filed February 2'7, 1920.

Serial No. 361,836.

ends of the extension arms 26 stacker head 28.

Each link 30 has its rear end in the form of a single bar, which carries a transverse pin 32, projecting on both sides into the slots 18 of the guides 16. The forward end of each link 30 is divided. the forked portrons lying on opposite sides of the respective extension arm 26. A removable pin 33 1S provided to connect this end of the link with the extension arm 26 at any one of the holes 34 therein. The movement of the transverse pin 82 in the slots 18 may be limited by means of plugs 36 set in certain of a series of holes 38 in the guides 16, the ends of the plugs projecting into the slots 18.

An A-frame 40 has its lower end pivoted carry the to the timbers l0 and its upper end connect ed with rods 44, which extend down to and are then connected with the forward ends of the lifting arms 24, as indicated at 46. The top of this structure is provided with a pulley 48 and a link 50 and the rear of the frame is provided with a pair of pulleys 52, which are connected to the rear framework by a common pivot, one of the pulleys beingconnected to this pivot by means of links whereby it may swing bodily about the otherpulley in the manner plainly shown in Figs. 1 and 5. A cable 56 is threaded over these pulleys for the purpose of elevatin the stacker head 28. A transverse bar 5 has its ends sli-dable in slots 58 provided in the upper sides of the lifting arms 24; and

springs 60 are connected at their forward ends with the bar 57 and at their rear ends with the lifting arms 24, as indicated at 62.

In operation the forward ends of the links are connected at any one'of the holes 34 re quired to givetheproper elevation of the head 28. The plugs 36 are provided to limit the forward movement of the rear ends of the links. Draft upon the cable 56 causes the lifting arms 24 to be elevated, thereby carrying the extension arms 26 and the stacker head 28. The rear ends of the links 30 move rearwardly, the pins 32- sliding in the grooves18 until they strike the rear ends thereof. Thereupon the forward ends of the links begin to extend the extension arms 26, lifting the head 28. As the head 28 ap proaches the limit of its upward movement, blocks secured on the inner sides of the links 30 engage the transverse bar 57 so that further extension produces tension in the ea wn back to springs 60. hen the head 28 reaches its limit, the load thrown and the springs 60, through the medium of the bar 57, act upon the blocks 54 to return the head over the dead center at 22. As the head approaches its lowermost position, the rearward ends of the links 30 slide forward in the slots 18 until the pins 352' strike the plugs 36, whereupon. the extension arms 26 are positively position through the medium of the linksSO.

This application is a continuation in part of my earlier application, Serial No. 321,312, filed September 3rd, 1919.

I claim: i

1.. In a stacker, a main frame, a lifting frame pivotally attached thereto, extension arms slidably connected to said lifting frame, a stacker head on said arms, means to lift said arms and head, an extension link pivoted to each extension arm, and a slidable lost motion connection between one end of said links and the frame.

2. In a stacker, a main frame, a lifting arm, an extension arm slidable on said lifting arm, a stacker head on the extension arm, means to lift said arms and head, and

a link pivoted to the extension arm and having a slidable lost motion connection with the frame.

3. In a stacker, a main frame, a lifting H arm pivoted thereto, spaced guides mounted at the rear of saidframe, an extension arm,

and a link connected at one end to said exi- 1 her. 1

, 5. In astacker, a main frame, a lifting frame pivoted thereto, an extension arm slidable with respect to the lifting frame and having a stacker head thereon, means to lift the arm and head, a link guide on the main frame, a link member pivoted to the extension arm at its forward end and having its rear end movable with respect to said guide and guided thereby, when the stacker is in operation and astop to limitrearward movement of said rear end.

6. In a stacker, a main frame, a lifting arm pivoted thereto, an extension arm slidable with respect to said lifting frame and having a stacker head thereon, means to lift the arm and head, a post at the rear of the frame, a rearwardly and upwardly inclined guide connecting the post with the frame, a link ivoted at vits forward end to the extension arm and having its rear end slidably connected with said guide, and a stop to limit the rearward movement of sa d link,

said link sliding on the guide as the stacker.

operates.

'7. In a stacker, a main frame, a lifting arm, a stacker head connected with the lifting arm, means to lift said arm and head, a link pivoted to said arm and bodily movable with respect to said frame during a portion of the lifting and lowering movements. 1

8. In a stacker, a main frame, a lifting arm, an extension arm movable on said lifting arm, a stacker head on the extension arm, means to lift said arms and head, and a link adapted to be pivotally connected with the extension arm at various points to obtain various adjustments for varying degrees of extension of said extension arm and head, said link being bodily movable with respect to the frame during the operation of the stacker.

9. In a stacker, a main frame, a lifting arm, an extenslon arm movable on said 11fting arm, a stacker head on the extension .arm, means to lift said arms and head,

a link pivoted to the extension arm at its forward end, an inclined guide upon which the rear end slides as the stacker operates and a stop adapted to be engaged by the rear end of said link to limit rearward movement thereof.

10. In a stacker, a main frame, a lifting arm, an extension arm movable onrsaid liftmg arm, a stackerv head on the extenslon arm, means to lift said arms and head, a

. link pivoted tothe extension arm at its forward end, an inclined guide upon which the rear end slidesas the stacker operates, and a stop adapted to be engaged by the rear end of said link to limit rearward movement thereof, said link being movable bodily with respect to the frame. V

' 11. In a hay stacker, a main frame, lifting arms, a lifting frame connected with said arms, a pulley onsaid lifting frame, a pair of pulleys at the back of the main frame, one of said pair of pulleys being adapted to swing bodily about the pivot of the other, and a cable connected to said lifting frame and passing over the pulley on the lifting frame and said pair ofpulleys wherebysaid swinging pulley swings about the other of said pair as the lifting frame is elevated. I y

12. In a hay stacker, a main frame, a lifting frame thereon, a pulley on the lifting frame and a pair of pulleys on the main frame one of which swings bodily about the pivot of the other, and a cable passing over all of said pulleys whereby said swinging pulley swings about the other of said pair as said lifting'frame is elevated- 13. In a hay stacker, a main frame, a lifting frame thereon, a pulley on the lifting frame, a pulley on the main frame, a cable connection adjacent the main frame pulley and movable bodily in a path concentric with the pivot of the said pulley, and a cable passing over said pulleys whereby said cable connection swings about the main frame pulley as the lifting frame is elevated.

let. In a stacker, a main frame, a lifting arm, an extension arm slidable on said lifting arm, a stacker head on the extension arm, means to lift said arms and head, and a link pivoted to the extension arm and having a lost motion connection with the frame.

15. In a stacker, a main frame, a lifting arm connected thereto, an extension arm movably connected with the lifting arm, a stacker head on said extension arm, means to lift said arms and head, a link pivoted to said extension arms and bodily movable with respect to said frame during a portion of the lifting and lowering movement.

16. In a stacker, a main frame, a lifting arm connected thereto, an extension arm movably connected with the lifting arm, a stacker head on said extension arm, means to lift said arms and head, a link pivoted to said extension arms and movable with respect to said frame during a portion of the lifting and lowering movement.

17. In a stacker, a main frame, a lifting arm, an extension arm movable on said lifting arm, a stacker head on the extension arm, means to lift said arm and head, and a link adapted to be pivotally connected with the extension arm at various points to obtain various adjustments for varying degrees of extension of said extension arm and head, said link being movable with respect to the frame during the operation of the stacker.

18. In a stacker, a main frame, a lifting frame pivotally attached thereto, extension arms connected to said lifting frame, a stacker head on said arms, means to lift said arms and head, an extension link pivoted to each extension arm, a lost motion connection between one end of said link and the frame, and a stop connected to said frame.

In testimony whereof I affix my signature.

CARSON O. COPE. 

